One of his biographers, Fr. Georg Schurhammer, SJ, has a 3 volume biography of Xavier that is quite moving and beautiful. Without exaggeration he is the greatest missionary Christianity has ever seen outside of St. Paul the Apostle. As the collect of his Mass says below, may we all be gifted with the zeal for the faith that he had!
“O God, who through the preaching of Saint Francis Xavier won many peoples to yourself, grant that the hearts of the faithful may burn with the same zeal for the faith and that Holy Church may everywhere rejoice in an abundance of offspring. Through our Lord Jesus Christ, your Son, who lives and reigns with you in the unity of the Holy Spirit, one God, for ever and ever.”